Plant Biotechnology MCQs

Question 1

Hydrated synthetic seeds which are produced by ion exchange reaction involve mixing the somatic embryos in a solution of

Accepted Answer

Sodium alginate and dropping it in a solution of calcium nitrate

Answer

Calcium alginate and dropping it in a solution of sodium nitrate

Answer

Calcium alginate and dropping it in a solution of ammonium nitrate

Answer

Mannitol and dropping it in a solution of sodium nitrate

Question 2

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R). Assertion: Somatic embryogenesis in plants is a twostep process comprising of embryo initiation followed by embryo production. Reason: Embryo initiation is independent of the presence of 2, 4-dichlorophenoxyacetic acid, whereas embryo production requires a high concentration of 2, 4-dichlorophenoxyacetic acid.

Accepted Answer

(A) is true but (R) is false

Answer

Both (A) and (R) are true and (R) is the correct reason for (A)

Answer

Both (A) and (R) are true and (R) is not the correct reason for (A)

Answer

(A) is false but (R) is true

Question 3

Which of the following statements are true about glyphosate tolerant transgenic plants? P. Transgenic plants detoxify glyphosate. Q. Transgenic plants produce an altered enzyme that is not affected by glyphosate. R. Transgenic plants sequester glyphosate in vacuoles. S. Transgenic plants overcome the inhibition of aromatic amino acid biosynthesis.

Accepted Answer

Q, S

Answer

P, Q

Answer

R, S

Answer

P, R